LEAD Schema v1.6 [2007-01-31]

CHANGE Log from v1.2 to v1.5+v1.6
* Changed namespaces of FGDC, LEAD, and LEADElements to full URIs.
* Moved eainfo up a level as child of data instead of child of geospatial.
* Removed duplicate elements defined under FGDC namespaces that were already
in use in LEAD namespace